So much more than a traditional revision resource, this Study and Revision Guide has been carefully designed to give students clear guidance on every aspect of the GCSE course and prepare them thoroughly for their final exams. // Written by an experienced teacher and examiner and endorsed by WJEC, it provides high quality support you can trust. // The innovative design allows the content of each topic to be covered in a three-step sequence: knowledge and understanding (AO1) pages begin each topic, followed by (AO2) application of knowledge and then (AO3) analysis & evaluation.